Central exams are often hypothesized to favorably affect incentive structures in schools. Indeed, previous research provides vast evidence on the positive effects of central exams on student test scores. But critics warn that these effects may arise through the strategic behavior of students and...

Wage penalties in overqualified employment are well documented, but little is known regarding the underlying mechanisms. We test two explanations, namely, formal overqualification and a mismatch of occupational skills. By using the National Educational Panel Study (NEPS) survey that is linked to...